TY - RPRT TI - The influence of social and endocrine factors on urine-marking by captive wolves (Canis lupus) AU - C. S. Asa AU - L.D. Mech AU - U.S. Seal AU - E.D. Plotka PY - 1990 DO - 10.1016/0018-506x(90)90038-y UR - https://pubs.usgs.gov/publication/5222497 ID - 5222497 ER -